CN101438028B - Cutting tool and method of assembling the cutting tool - Google Patents
Cutting tool and method of assembling the cutting tool Download PDFInfo
- Publication number
- CN101438028B CN101438028B CN2007800167277A CN200780016727A CN101438028B CN 101438028 B CN101438028 B CN 101438028B CN 2007800167277 A CN2007800167277 A CN 2007800167277A CN 200780016727 A CN200780016727 A CN 200780016727A CN 101438028 B CN101438028 B CN 101438028B
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- China
- Prior art keywords
- cutting element
- diameter
- reduces
- packing ring
- diameter parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 149
- 238000000034 method Methods 0.000 title claims description 14
- 238000012856 packing Methods 0.000 claims description 55
- 210000000078 claw Anatomy 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
- E21C35/197—Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Milling Processes (AREA)
- Drilling Tools (AREA)
- Road Repair (AREA)
- Gripping On Spindles (AREA)
Abstract
A cutting tool assembly includes a tool body having a major flare diameter portion disposed adjacent the cutting end of the cutting tool and a puller groove disposed below the major flare diameter portion. A compressible sleeve is disposed about a shank portion of the cutting tool, which is mounted in a tool holder. A washer is fitted about the compressible sleeve, and acts as one of the sides of the puller groove. The location of the puller groove below the major flare diameter portion allows for the cutting tool to be made by cold forming, or the like.
Description
Technical field
Present invention relates in general to the method for cutting element and assembling cutting element.Particularly, the invention relates to cutting element and cutting element is assemblied in the method on the cutting element retainer.
Background technology
Be used to cut hard surface, for example the tool assembly of rock and pitch generally includes swiveling wheel or drum, around the circumference of wheel or drum a plurality of cutting elements is installed.Each cutting element is installed in rotation in the cylindrical hole of rotating drum.Yet through this instrument cutting material serious wear so that in the use of just for one day, cutting element just becomes and grinds away, and needs to change continually.Therefore, the replacing of these instruments must relatively easily be accomplished.
Each cutting element generally includes taper cutting edge forward, and said cutting edge has carbide chip, and with the isolated main expansion diameter part of carbide chip.Between carbide chip and main expansion diameter part, be provided with and extract tank.The said tank of extracting is used to utilize tool for uprooting to extract cutting element from retainer.When the rear portion that does not have abundant contact instrument when extruding them, this is optimal method.In cutting element, this groove is normally by machine, so cost is very high.In addition, since this groove near the tip of cutting element by machine, so easy abrasion.
Cutting element also comprises handle at end place backward.Compressible sleeve be arranged on handle around so that instrument is installed in the hole of tool holder.In the time of in lining is mounted to tool holder, can use packing ring to help the compression lining.When assembling, the partly contiguous packing ring setting of the main expansion diameter of cutting element.
During use, cutting element rotates in the compressible spring lining.Like this, main expansion diameter part is against the packing ring friction.Because the contiguous packing ring setting of the largest portion of cutting element, so both contact surfaces are reached maximum, cause excessive friction between packing ring and the cutting element.
Therefore, for cutting element minimum contact surface need be arranged between packing ring and cutting element in this area.In addition, need it to make for the cutting element main body in this area through forging.
Summary of the invention
One side of the present invention is about being used to insert the cutting element of tool holder.Tool body comprises and is used to hold first end of cutting tip and is used to be installed in second end in the tool holder.Tool body comprises taper cutting edge forward.Main expansion diameter partly is close to cutting edge setting forward.Reducing the contiguous main expansion diameter of diameter parts partly is provided with.The handle vicinity reduces the diameter parts setting.Compressible sleeve be arranged on handle around.In the time of in cutting element remains on tool holder, the packing ring vicinity reduces the diameter parts setting.
Another aspect of the present invention is the method about the assembling cutting element.Cutting element with tool body is provided, and this tool body has first end that receives cutting element and is used to be installed in second end in the tool holder.Tool body comprises the cutting edge forward of convergent, and main expansion diameter partly is close to cutting edge setting forward, reduce the contiguous main expansion diameter of diameter parts and partly be provided with, and the handle vicinity reduces the diameter parts setting.Compressible sleeve be installed in cutting element handle around.Packing ring be installed in cutting element around.
Another aspect of the present invention is about cutting element and retainer.Tool body comprises and is used to receive first end of cutting tip and is installed in second end on the cutting element retainer.Tool body comprises taper cutting edge forward.This cutting tip is arranged on first end of tool body.Main expansion diameter partly is close to cutting edge setting forward.Reducing the contiguous main expansion diameter of diameter parts partly is provided with.The handle vicinity reduces the diameter parts setting.Compressible sleeve be arranged on handle around.In the time of in cutting element remains on tool holder, packing ring is reduced the diameter parts setting by vicinity.
Description of drawings
Accompanying drawing provides visual representation, and they will be used to describe exemplary embodiment disclosed herein comprehensively, so that those skilled in the art can understand these embodiment and their inherent advantage preferably.In these accompanying drawings, identical reference marker is represented corresponding parts.
Fig. 1 shows the cross section lateral view of part of exemplary cutting element of the present invention and retainer;
Fig. 2 shows the lateral view of exemplary cutting element of the present invention;
Fig. 3 shows the lateral view according to the exemplary cutting element of prior art;
Fig. 4 shows the lateral view of exemplary tool body of the present invention;
Fig. 5 shows the lateral view according to exemplary compressible sleeve of the present invention;
Fig. 5 A is the sectional drawing of the compressible sleeve among Fig. 5 of 5A-5A intercepting along the line;
Fig. 6 shows the vertical view according to exemplary packing ring of the present invention;
Fig. 6 A is the sectional view of packing ring of Fig. 6 of 6A-6A intercepting along the line;
Fig. 7 shows the lateral view of standard extractor tool;
Fig. 8 shows the lateral view that cutting element of the present invention has the packing ring that is provided with along the compressible sleeve middle part;
Fig. 9 shows cutting element of the present invention and has the contiguous lateral view that reduces the packing ring of diameter parts setting.
The specific embodiment
Fig. 1 and Fig. 2 show the exemplary embodiment of cutter assembly 10 of the present invention and cutting element 12.Though being described as generally, cutter assembly 10 is applicable to the road milling instrument, should be appreciated that cutter assembly 10 according to the present invention can be applicable to the cutting element except that the road milling instrument.For example, mining tool and ditching instrument.
With reference to Fig. 2 and 3, the cutting element 12 of the present invention and the cutting element 40 of prior art are made comparisons.With reference to Fig. 3, the cutting element 40 of prior art comprises taper cutting edge 42 forward especially, and its end at it receives cutting tip 44.Reduce diameter parts 46 and be arranged on taper forward between cutting edge 42 and the main expansion diameter part 48, and have can acceptance criteria tool for uprooting 49 claw (referring to Fig. 7).Compressible maintenance lining 50 is arranged on around the shank 52 of cutting element 40, remains on (referring to for example Fig. 1) in the tool holder to make cutting element 40 thus.Packing ring 54 is arranged on around the compressible sleeve 50, and it compresses in advance and keeps lining 54, so that cutting element 40 is installed and remained in the tool holder.
According to the cutting element 40 of prior art, reducing diameter parts 46 must be by machine, because can not produce such trough of belt part through cooling formation technic.Particularly, when cold forming, the trough of belt part does not allow to stamp out cutting element from mould, yet machine is very expensive, should be avoided.In addition, the contact surface between main expansion diameter part 48 and the packing ring 54 is quite big, has increased frictional force and the negative effect rotation of cutting element 40 in tool holder thus, causes too early wearing and tearing.In addition, reduce diameter parts or extract tank 46 relatively near cutting tip 44 location, its end face that causes groove is worn, thereby makes for come tool for uprooting with extractor it also is useless.
On the contrary, cutting element 12 of the present invention is reducing diameter parts or is extracting to comprise main expansion diameter part 24 above the tank 26.Likewise, packing ring 36 is as the bottom surface 36A that extracts tank 26, and main expansion diameter part 24 is as the end face 24A that extracts tank 26.In addition, as shown in Figure 2, extract the end face of tank 26 and the frictional force between main expansion diameter part 24 and the cutting element 12 and be minimized, because their surface contact each other reduces significantly.During operation, main expansion diameter part 24 is as a side of extracting tank 26, and removes far from cutting tip 20, reduced the wearing and tearing of end face 24A and main expansion diameter part 24 thus.
With reference to Fig. 4, the cutting element 12 that present invention will be further described.Especially, cutting element 12 comprises the tool body 16 with first end 18 and second end 28.First end 18 comprises the base 56 that is used for receiving therein the cutting tip (not shown).First end 18 comprises the cutting tip forward 22 of the convergent of contiguous main expansion diameter part 24.Reduce diameter parts or extract tank 26 be arranged on main expansion diameter part 24 below.The shoulder that bridge joint reduces diameter parts 26 and main expansion diameter part 24 is configured for engaging the end face 24A of tool for uprooting 49.Preferably, reduce diameter parts 26 for cylindrical.Yet, should be appreciated that reducing diameter parts 26 can adopt other shape according to the needs of application and design preference.
Extract the tank top because main expansion diameter part 24 is arranged on, so tool body 16 can form through cold forming, wherein metal base can form needed shape, has avoided mach significant cost thus.Especially, base is inserted in the punch die that limits the cutting element external surface, and afterwards, base is stamped into the shape-consistent with punch die.Yet, should be appreciated that tool body 16 other method manufacturings well known in the prior art capable of using, and be not limited to cold forming.
With reference to Fig. 5,5A, 6 and 6A, compressible sleeve 34 of the present invention is similar with compressible sleeve of the prior art and packing ring with packing ring 36.Especially with reference to Fig. 5 and 5A, compressible sleeve 34 is preferably by the spring steel manufacturing and comprise opening 70, and this opening allows lining to be compressed through packing ring 36.With reference to Fig. 6 and 6A, packing ring 36 comprises inclined-plane 72, and this inclined-plane is downwardly at an angle taper, and this makes the contact that reduces diameter parts or extract between the tank 26 of packing ring 36 and cutting element reduce to minimum.For example, at United States Patent(USP) No. 6,113, the structure of the packing ring shown in 195, its description is bonded to this, as a reference.This angle is preferably roughly 45 degree, but can be greater or lesser angle according to the needs of application and design preference.Lining 34 also comprises many ratchets 74 (seeing Fig. 5 and 5A), and these ratchets and the groove 76 (see figure 4)s engagement that is arranged on the shank 30 of cutting element 12 make lining 34 remain on the cutting element 12 thus.
With reference to Fig. 8 and 9, of the present invention on tool holder 14 method of assembling cutting element 12 comprise, around the shank 30 of cutting element 12, compressible sleeve 34 is installed, so that the stepped part 60 of lining 34 contiguous cutting elements 12 is provided with.Packing ring 36 is engaged in tool body 16 on the compressible sleeve 34 second end 28 around, till packing ring 36 is arranged on around about middle part of compressible sleeve 34.
In case packing ring 36 is around the compressible sleeve approximate mid-section is installed in compressible sleeve 34, second end 28 of cutting element 12 just injects in the hole of tool holder, up to first end 80 of the packing ring 36 end face (not shown) in abutting connection with tool holder.Then to first end 18 and cutting tip 20 active forces of cutting element 12, reduce diameter parts or extract tank 26 up to second end, 82 butts of packing ring 36, as shown in Figure 9.Packing ring 36 compresses compressible sleeve 34 in advance along the length of compressible sleeve, and is in the hole of being convenient to cutting element insertion tool holder thus, as shown in fig. 1.
In the cutting element of using at present 12, the contact surface between cutting element 12 and the packing ring 36 is less than the contact surface between packing ring 36 and the tool holder 14.Like this, packing ring 36 will can not move or on retainer, rotate, and just utilize the end face of retainer to keep fixing.This will reduce the wearing and tearing of the contact surface of retainer and packing ring.The surface area that increases between packing ring and the retainer will prevent that packing ring from rotating, and reduced the wearing and tearing at the top of retainer thus.Like this, for a long time, instrument just will need replacing before bad and contact surface produces destructive malfunction in the contact surface abrasion of instrument and packing ring.When cutting element was changed, packing ring also was replaced.
Present disclosed embodiment is considered aspect schematic and non-limiting all.Protection domain pointed out by appended claim rather than the description through the front, and the implication and the institute in the scope that belong to equivalent of the present invention change and all be used to be contained within the protection domain.
Claims (20)
1. cutting element that is used for being inserted into tool holder comprises:
Tool body, said tool body have first end that is used to receive cutting tip and are installed in second end in the said tool holder with being used to, and said tool body comprises taper cutting edge forward;
The main expansion diameter part that contiguous said cutting edge forward is provided with;
Contiguous said main expansion diameter partly is provided with reduces diameter parts;
The contiguous said handle that reduces the diameter parts setting;
Be arranged on the compressible sleeve on every side of said handle; With
Packing ring; In the time of in said cutting element is maintained at said tool holder; Said packing ring is contiguous said to reduce the diameter parts setting, and the said diameter that reduces diameter parts is less than the said taper maximum gauge of cutting edge forward, to reduce the contact area between said tool body and the said packing ring.
2. cutting element as claimed in claim 1, but the wherein said size that reduces diameter parts is set to the acceptance criteria tool for uprooting.
3. cutting element as claimed in claim 1, the wherein said diameter parts that reduces is cylindrical.
4. cutting element as claimed in claim 1, the wherein said diameter parts that reduces forms through forging.
5. cutting element as claimed in claim 1, wherein said packing ring comprises the inclined-plane, said inclined-plane leaves with said and reduces the surperficial tapered of diameter parts vicinity, thereby makes said packing ring and the said contact that reduces between the diameter parts minimize.
6. cutting element as claimed in claim 5, the said inclined-plane of wherein said packing ring are about 45 degree.
7. cutting element as claimed in claim 1; Also comprise contiguous said handle and the said stepped part that reduces diameter parts; The diameter of wherein said stepped part is greater than the diameter of said handle, and the diameter of said stepped part is less than the said diameter that reduces diameter parts.
8. a method of assembling cutter assembly comprises the steps:
Cutting element is provided, and said cutting element has: tool body, said tool body have first end that is used to receive cutting tip and are installed in second end in the tool holder with being used to, and said tool body comprises taper cutting edge forward; The main expansion diameter part that contiguous said cutting edge forward is provided with, contiguous said main expansion diameter partly is provided with reduces diameter parts; With the contiguous said handle that diameter parts is provided with that reduces, the said diameter that reduces diameter parts is less than the said taper maximum gauge of cutting edge forward;
Compressible sleeve is engaged in said cutting element said handle around; With
Packing ring is provided around said cutting element.
9. method as claimed in claim 8, wherein said cutting element are that cold forming forms.
10. method as claimed in claim 8, wherein said packing ring are arranged on the approximate center along said compressible sleeve on said compressible sleeve.
11. method as claimed in claim 10 further comprises the steps:
Said second end of said cutting element is inserted in the hole of tool holder, till first end adjacency front surface of said tool holder of said packing ring; With
Said first end to said cutting element applies power, up to second end of said packing ring against said reduce diameter parts till.
12. method as claimed in claim 11, said to reduce diameter parts tapered to leave with the angle that the longitudinal axis of said cutting element becomes to be similar to 45 degree for wherein said packing ring.
13. method as claimed in claim 8 wherein assigns to remove said cutting element through the said diameter portion that reduces of catching said cutting element with the claw of tool for uprooting.
14. the combination of cutting element and retainer comprises:
Tool body, said tool body have first end that is used to receive cutting tip and are installed in second end in the tool holder with being used to, and said tool body comprises taper cutting edge forward;
Be arranged on the cutting tip in said first end of said tool body;
The main expansion diameter part that contiguous said cutting edge forward is provided with;
Contiguous said main expansion diameter partly is provided with reduces diameter parts;
The contiguous said handle that reduces the diameter parts setting;
Be arranged on the compressible sleeve on every side of said handle; With
Packing ring; In the time of in said cutting element is maintained at said tool holder; Said packing ring is contiguous said to reduce the diameter parts setting, and the said diameter that reduces diameter parts is less than the said taper maximum gauge of cutting edge forward, to reduce the contact area between said tool body and the said packing ring.
15. the combination of cutting element as claimed in claim 14 and retainer, but the wherein said size that reduces diameter parts is set to the acceptance criteria tool for uprooting.
16. the combination of cutting element as claimed in claim 14 and retainer, the wherein said diameter parts that reduces is cylindrical.
17. the combination of cutting element as claimed in claim 14 and retainer, the wherein said diameter parts that reduces forms through forging.
18. the combination of cutting element as claimed in claim 14 and retainer; Wherein said packing ring comprises the inclined-plane; Said inclined-plane leaves with said and reduces the surperficial tapered of diameter parts vicinity, thereby makes said packing ring and the said contact that reduces between the diameter parts minimize.
19. the combination of cutting element as claimed in claim 18 and retainer, the inclined-plane of wherein said packing ring are about 45 degree.
20. the combination of cutting element as claimed in claim 14 and retainer; Also comprise contiguous said handle and the said stepped part that reduces diameter parts; The diameter of wherein said stepped part is greater than the diameter of said handle; And the diameter of said stepped part is less than the said diameter that reduces diameter parts, said packing ring be arranged in being maintained at said tool holder the time said stepped part around.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/429,439 US20070257545A1 (en) | 2006-05-08 | 2006-05-08 | Cutting tool and method of assembling the cutting tool |
| US11/429,439 | 2006-05-08 | ||
| PCT/US2007/010714 WO2007133463A2 (en) | 2006-05-08 | 2007-05-01 | Cutting tool and method of assembling the cutting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101438028A CN101438028A (en) | 2009-05-20 |
| CN101438028B true CN101438028B (en) | 2012-03-21 |
Family
ID=38660562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800167277A Expired - Fee Related CN101438028B (en) | 2006-05-08 | 2007-05-01 | Cutting tool and method of assembling the cutting tool |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20070257545A1 (en) |
| EP (1) | EP2021581A2 (en) |
| JP (1) | JP4829344B2 (en) |
| CN (1) | CN101438028B (en) |
| AU (1) | AU2007250003B2 (en) |
| CA (1) | CA2650811C (en) |
| MX (1) | MX2008014022A (en) |
| WO (1) | WO2007133463A2 (en) |
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| DE102007030658A1 (en) * | 2007-07-02 | 2009-01-15 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | shank bits |
| DE202007018885U1 (en) * | 2007-10-29 | 2009-09-17 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | shank bits |
| US8414084B2 (en) * | 2009-07-13 | 2013-04-09 | Sandvik Intellectual Property Ab | Adaptive sleeve retainer for tool pick |
| WO2011016765A1 (en) * | 2009-08-04 | 2011-02-10 | Sandvik Intellectual Property Ab | Non-rotating washer for tool pick, tool and block assembly, method to reduce erosive wear and material removal machine |
| DE102009049780B4 (en) * | 2009-10-19 | 2016-02-18 | Betek Gmbh & Co. Kg | Chisel, in particular round shank chisel |
| AU2014202477B2 (en) * | 2009-10-19 | 2017-02-02 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | Bit, in particular a round shaft bit |
| EP2601356A1 (en) * | 2010-08-02 | 2013-06-12 | Sandvik Intellectual Property Ab | Rotatable grading pick with debris clearing feature, a tool and block assembly and a road grading machine |
| US8449041B2 (en) * | 2010-10-27 | 2013-05-28 | Sandvik Intellectual Property Ab | Grading pick with extended fins |
| CN102486022B (en) | 2010-12-03 | 2014-09-17 | 维特根有限公司 | Chisel holder, and chisel holder system comprising chisel holder and base part |
| DE102011000314A1 (en) * | 2011-01-25 | 2012-07-26 | Gerd Elfgen | Method for dismantling round shank chisel of milling device from receiving bore of chisel holder, involves moving chisel with clamping sleeve towards longitudinal axis relative to support plate, to displace sleeve in plate opening |
| CN103726793A (en) * | 2013-12-25 | 2014-04-16 | 南宁市南北动力有限公司 | Drill bit cutting tooth part for rotary drilling rig |
| CN105201501A (en) * | 2015-09-15 | 2015-12-30 | 安徽澳德矿山机械设备科技股份有限公司 | Jacketed type abrasion-resistant tooth base used for cutting tooth of heading machine |
| US10184336B2 (en) * | 2016-01-13 | 2019-01-22 | Caterpillar Paving Products Inc. | Milling tool holder |
| DE102016108808A1 (en) * | 2016-05-12 | 2017-11-16 | Betek Gmbh & Co. Kg | Chisel with a support element with a spigot |
| US11092008B2 (en) | 2019-12-03 | 2021-08-17 | Ironhawk Industrial Distribution LLC | Grader bit |
| US11719098B2 (en) * | 2021-09-10 | 2023-08-08 | Kennametal Inc. | Tool retainer |
| USD1015136S1 (en) | 2022-02-21 | 2024-02-20 | Kennametal Inc. | Washer for cutting tools |
| US12011852B2 (en) | 2022-02-21 | 2024-06-18 | Kennametal Inc. | Washers for Rotatable Cutting Tools |
| US11898446B1 (en) * | 2022-07-29 | 2024-02-13 | Kennametal Inc. | Tool retainer |
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2006
- 2006-05-08 US US11/429,439 patent/US20070257545A1/en not_active Abandoned
-
2007
- 2007-05-01 CN CN2007800167277A patent/CN101438028B/en not_active Expired - Fee Related
- 2007-05-01 MX MX2008014022A patent/MX2008014022A/en active IP Right Grant
- 2007-05-01 CA CA2650811A patent/CA2650811C/en not_active Expired - Fee Related
- 2007-05-01 AU AU2007250003A patent/AU2007250003B2/en not_active Ceased
- 2007-05-01 WO PCT/US2007/010714 patent/WO2007133463A2/en active Application Filing
- 2007-05-01 EP EP07776670A patent/EP2021581A2/en not_active Withdrawn
- 2007-05-01 JP JP2009509706A patent/JP4829344B2/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240495A (en) * | 1996-12-19 | 2000-01-05 | 钴碳化钨硬质合金公司 | Cutting tool sleeve rotation limitation system |
| US6199956B1 (en) * | 1998-01-28 | 2001-03-13 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz-Simon Gmbh & Co. Kg | Round-shank bit for a coal cutting machine |
| US6113195A (en) * | 1998-10-08 | 2000-09-05 | Sandvik Ab | Rotatable cutting bit and bit washer therefor |
| CN2732816Y (en) * | 2004-03-03 | 2005-10-12 | 株洲硬质合金集团有限公司 | Milling-planing tool for paving |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2007250003B2 (en) | 2010-08-19 |
| WO2007133463A2 (en) | 2007-11-22 |
| WO2007133463A3 (en) | 2008-07-10 |
| CA2650811C (en) | 2012-08-21 |
| JP2009536701A (en) | 2009-10-15 |
| JP4829344B2 (en) | 2011-12-07 |
| CA2650811A1 (en) | 2007-11-22 |
| MX2008014022A (en) | 2009-01-20 |
| US20070257545A1 (en) | 2007-11-08 |
| CN101438028A (en) | 2009-05-20 |
| AU2007250003A1 (en) | 2007-11-22 |
| EP2021581A2 (en) | 2009-02-11 |
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